rs1555177824

Variant names:

• chr12-57569269-C-T
• rs1555177824
• NM_004984.4:c.833C>T

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PM1 PM2 PP3_Strong PP5_Very_Strong

The NM_004984.4(KIF5A):​c.833C>T​(p.Pro278Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P278S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: KIF5A NM_004984.4 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 7.80
• Publications: 0 publications found

Genes affected

KIF5A (HGNC:6323): (kinesin family member 5A) This gene encodes a member of the kinesin family of proteins. Members of this family are part of a multisubunit complex that functions as a microtubule motor in intracellular organelle transport. Mutations in this gene cause autosomal dominant spastic paraplegia 10. [provided by RefSeq, Jul 2008]

KIF5A Gene-Disease associations (from GenCC):

• amyotrophic lateral sclerosis, susceptibility to, 25

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Illumina, Labcorp Genetics (formerly Invitae)
• inherited neurodegenerative disorder

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• myoclonus, intractable, neonatal

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, G2P, Labcorp Genetics (formerly Invitae)
• hereditary spastic paraplegia 10

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• autosomal dominant Charcot-Marie-Tooth disease type 2 due to KIF5A mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 16 ACMG points.

• PM1: In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 uncertain in NM_004984.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.969
• PP5: Variant 12-57569269-C-T is Pathogenic according to our data. Variant chr12-57569269-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 424658.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004984.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF5A	NM_004984.4	MANE Select	c.833C>T	p.Pro278Leu	missense	Exon 10 of 29	NP_004975.2
	KIF5A	NM_001354705.2		c.566C>T	p.Pro189Leu	missense	Exon 7 of 26	NP_001341634.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KIF5A	ENST00000455537.7	TSL:1 MANE Select	c.833C>T	p.Pro278Leu	missense	Exon 10 of 29	ENSP00000408979.2
	KIF5A	ENST00000674619.1		c.833C>T	p.Pro278Leu	missense	Exon 10 of 30	ENSP00000502270.1
	KIF5A	ENST00000676457.1		c.728C>T	p.Pro243Leu	missense	Exon 9 of 28	ENSP00000501588.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
1	-	-	Hereditary spastic paraplegia (1)
1	-	-	Hereditary spastic paraplegia 10 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.42
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.95	D
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Pathogenic	0.60	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.93	D
MutationAssessor	Pathogenic	4.2	H
PhyloP100		7.8
PrimateAI	Pathogenic	0.87	D
PROVEAN	Pathogenic	-9.4	D
REVEL	Pathogenic	0.93
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.99
MutPred		0.82		Gain of catalytic residue at K283 (P = 0.0025)
MVP		0.96
MPC		2.1
ClinPred		1.0	D
GERP RS		4.2
Varity_R		0.93
gMVP		1.0
Mutation Taster		=2/98	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1555177824; hg19: chr12-57963052; COSMIC: COSV104591076;